Core@shell sulfur@polypyrrole nanoparticles sandwiched in graphene sheets as cathode for lithium–sulfur batteries

Integrated Design of MnO2@Carbon Hollow Nanoboxes to Synergistically Encapsulate Polysulfides for Empowering Lithium Sulfur Batteries

“…Figure S3 (Supporting Information) reveals typical electrochemical reactions of the cathode involving in reduction and oxidation of sulfur, which was measured between 1.7 and 2.8 V (vs Li/Li + ). Two cathodic peaks (at about 2.27 and 2.04) and broad oxidation peak were typical of LSBs, which agrees well with previous reports . After first cycle the rest of cycles overlap with each other that indicates the higher reversibility of the developed hybrid nanoboxes.…”

Edge sulfurized graphene nanoplatelets via vacuum mechano-chemical reaction for lithium–sulfur batteries

“…Among all of the cathodes, the 70%S-GnPs-48 h shows the highest capacity and capacity retention, mainly resulting from the highest content of chemically bonding S to GnPs. The assembled batteries based on 70%S-GnPs materials exhibit superior discharge-charge performance, which is superior/similar to the current graphene/sulfur cathode with other reports [48][49][50][51] . This demonstrates that the ball-milling method applied vacuum mechano-chemical interaction is much more simple, low-cost and eco-friendly for large-scale preparation.…”

A review of nanocarbons in energy electrocatalysis: Multifunctional substrates and highly active sites

“…In regards to the strongly coupled hybrids of nanocarbons and active components, the enhanced catalytic performance is always achieved due to the active sites from active components and/or nanocarbons [63,64] , and the improved electrical conductivity and mass transport from nanocarbons [65][66][67] . Such concept is widely accepted when carbon materials serve as hosts to accommodate active materials in various batteries [68][69][70][71][72][73] and supercapacitors [74][75][76][77] . Additionally, the nanocarbons can also play important roles to directly and significantly modify the obtained morphologies and properties of active components during the composite/hybrid fabrication, leading to optimal structure and performances [78][79][80][81][82][83][84] .…”